Please use this identifier to cite or link to this item:
|Title:||The impact of pipeline changes and temperature increase in a hospital historically colonised with Legionella|
Párraga Niño, N.
García Núñez, M.
Pedro Botet, M. L.
Mòdol, J. M.
|Publisher:||Springer Science and Business Media LLC|
|Abstract:||Healthcare-related Legionnaires' disease has a devastating impact on high risk patients, with a case fatality rate of 30-50%. Legionella prevention and control in hospitals is therefore crucial. To control Legionella water colonisation in a hospital setting we evaluated the effect of pipeline improvements and temperature increase, analysing 237 samples over a 2-year period (first year: 129, second year: 108). In the first year, 25.58% of samples were positive for Legionella and 16.67% for amoeba. Assessing the distance of the points analysed from the hot water tank, the most distal points presented higher proportion of Legionella colonisation and lower temperatures (nearest points: 6.4% colonised, and temperature 61.4 °C; most distal points: 50% and temperature 59.1 °C). After the first year, the hot water system was repaired and the temperature stabilised. This led to a dramatic reduction in Legionella colonisation, which was negative in all the samples analysed; however, amoeba colonisation remained stable. This study shows the importance of keeping the temperature stable throughout the circuit, at around 60 °C. Special attention should be paid to the most distal points of the circuit; a fall in temperature at these weak points would favour the colonisation and spread of Legionella, because amoeba (the main Legionella reservoir) are not affected by temperature.|
|Note:||Reproducció del document publicat a: https://doi.org/10.1038/s41598-021-81625-6|
|It is part of:||Scientific Reports, 2021, vol. 11, num. 1916|
|Appears in Collections:||Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL))|
This item is licensed under a Creative Commons License